Winter is a time for getting all bundled up—but, hopefully, not at home. And yet, since we are continually running our heaters, often at full blast, there is a risk of a malfunction leaving us inside in the cold. While sudden breakdowns can occur, there are usually hints that you are in need of furnace repair. The guide below explains some to look out for.

How to Know the Furnace Needs to Be Fixed

1. Strange Sounds

Your HVAC unit should run relatively quietly. So if you hear banging, rattling, squealing, or popping, it could indicate everything from a loose component to a leak to tiny gas explosions as a result of a failing pilot light. 

2. Cold Air

The heater's job is to make the house warmer, so any time it fails to do that, it requires furnace repair. The issue could be with the burner or the thermocouple, but it is beyond do-it-yourself troubleshooting.

3. Pooling Water

When the condensate line is blocked, you will usually see water pooling around the heating unit. HVAC contractors will need to open and unclog the line to get the furnace up and running. Even though leaks are not dangerous, they should be handled quickly to stop water damage in your home.

4. Rising Utility Bills

If your utility bills are getting higher without cause, a dirty filter or issues with the ducts have likely caused the unit to run less efficiently. In this case, scheduling maintenance will not only help you save money but reduce your household's impact on the environment.

5. Gas Smell

If you smell gas, shut off the furnace and the gas supply valve immediately and call an HVAC contractor for help. While you wait, do not ignite any matches or turn on any lights, which could cause the air to ignite. Instead, stay outside in your car, in case it is a carbon monoxide leak and wait for a furnace repair professional to give the all-clear that you can return to the house safely.

Need furnace repair in the San Marcos, TX, area? Call Marvin’s Heating & Air Conditioning. These professional HVAC contractors bring almost 40 years of expertise to every heating and cooling call, ensuring that the system is running efficiently when you need it most. Call (512) 396-4791 for an appointment or visit their website for more on their heating services.